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path: root/drawinglayer/source/attribute/sdrfillattribute.cxx
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#include <drawinglayer/attribute/sdrfillattribute.hxx>
#include <basegfx/color/bcolor.hxx>
#include <drawinglayer/attribute/sdrfillbitmapattribute.hxx>
#include <drawinglayer/attribute/fillhatchattribute.hxx>
#include <drawinglayer/attribute/fillgradientattribute.hxx>

//////////////////////////////////////////////////////////////////////////////

namespace drawinglayer
{
    namespace attribute
    {
        class ImpSdrFillAttribute
        {
        public:
            // refcounter
            sal_uInt32                          mnRefCount;

            // fill definitions
            double                              mfTransparence;     // [0.0 .. 1.0], 0.0==no transp.
            basegfx::BColor                     maColor;            // fill color
            FillGradientAttribute               maGradient;         // fill gradient (if used)
            FillHatchAttribute                  maHatch;            // fill hatch (if used)
            SdrFillBitmapAttribute              maBitmap;           // fill bitmap (if used)

        public:
            ImpSdrFillAttribute(
                double fTransparence,
                const basegfx::BColor& rColor,
                const FillGradientAttribute& rGradient,
                const FillHatchAttribute& rHatch,
                const SdrFillBitmapAttribute& rBitmap)
            :   mnRefCount(0),
                mfTransparence(fTransparence),
                maColor(rColor),
                maGradient(rGradient),
                maHatch(rHatch),
                maBitmap(rBitmap)
            {
            }

            // data read access
            double getTransparence() const { return mfTransparence; }
            const basegfx::BColor& getColor() const { return maColor; }
            const FillGradientAttribute& getGradient() const { return maGradient; }
            const FillHatchAttribute& getHatch() const { return maHatch; }
            const SdrFillBitmapAttribute& getBitmap() const { return maBitmap; }

            // compare operator
            bool operator==(const ImpSdrFillAttribute& rCandidate) const
            {
                return(getTransparence() == rCandidate.getTransparence()
                    && getColor() == rCandidate.getColor()
                    && getGradient() == rCandidate.getGradient()
                    && getHatch() == rCandidate.getHatch()
                    && getBitmap() == rCandidate.getBitmap());
            }

            static ImpSdrFillAttribute* get_global_default()
            {
                static ImpSdrFillAttribute* pDefault = 0;

                if(!pDefault)
                {
                    pDefault = new ImpSdrFillAttribute(
                        0.0,
                        basegfx::BColor(),
                        FillGradientAttribute(),
                        FillHatchAttribute(),
                        SdrFillBitmapAttribute());

                    // never delete; start with RefCount 1, not 0
                    pDefault->mnRefCount++;
                }

                return pDefault;
            }
        };

        SdrFillAttribute::SdrFillAttribute(
            double fTransparence,
            const basegfx::BColor& rColor,
            const FillGradientAttribute& rGradient,
            const FillHatchAttribute& rHatch,
            const SdrFillBitmapAttribute& rBitmap)
        :   mpSdrFillAttribute(new ImpSdrFillAttribute(
                fTransparence, rColor, rGradient, rHatch, rBitmap))
        {
        }

        SdrFillAttribute::SdrFillAttribute()
        :   mpSdrFillAttribute(ImpSdrFillAttribute::get_global_default())
        {
            mpSdrFillAttribute->mnRefCount++;
        }

        SdrFillAttribute::SdrFillAttribute(const SdrFillAttribute& rCandidate)
        :   mpSdrFillAttribute(rCandidate.mpSdrFillAttribute)
        {
            mpSdrFillAttribute->mnRefCount++;
        }

        SdrFillAttribute::~SdrFillAttribute()
        {
            if(mpSdrFillAttribute->mnRefCount)
            {
                mpSdrFillAttribute->mnRefCount--;
            }
            else
            {
                delete mpSdrFillAttribute;
            }
        }

        bool SdrFillAttribute::isDefault() const
        {
            return mpSdrFillAttribute == ImpSdrFillAttribute::get_global_default();
        }

        SdrFillAttribute& SdrFillAttribute::operator=(const SdrFillAttribute& rCandidate)
        {
            if(rCandidate.mpSdrFillAttribute != mpSdrFillAttribute)
            {
                if(mpSdrFillAttribute->mnRefCount)
                {
                    mpSdrFillAttribute->mnRefCount--;
                }
                else
                {
                    delete mpSdrFillAttribute;
                }

                mpSdrFillAttribute = rCandidate.mpSdrFillAttribute;
                mpSdrFillAttribute->mnRefCount++;
            }

            return *this;
        }

        bool SdrFillAttribute::operator==(const SdrFillAttribute& rCandidate) const
        {
            if(rCandidate.mpSdrFillAttribute == mpSdrFillAttribute)
            {
                return true;
            }

            if(rCandidate.isDefault() != isDefault())
            {
                return false;
            }

            return (*rCandidate.mpSdrFillAttribute == *mpSdrFillAttribute);
        }

        double SdrFillAttribute::getTransparence() const
        {
            return mpSdrFillAttribute->getTransparence();
        }

        const basegfx::BColor& SdrFillAttribute::getColor() const
        {
            return mpSdrFillAttribute->getColor();
        }

        const FillGradientAttribute& SdrFillAttribute::getGradient() const
        {
            return mpSdrFillAttribute->getGradient();
        }

        const FillHatchAttribute& SdrFillAttribute::getHatch() const
        {
            return mpSdrFillAttribute->getHatch();
        }

        const SdrFillBitmapAttribute& SdrFillAttribute::getBitmap() const
        {
            return mpSdrFillAttribute->getBitmap();
        }
    } // end of namespace attribute
} // end of namespace drawinglayer

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */